Andrew, thanks. The problem is (almost) solved. X and KDE start, but only in recovery mode, by command "startx". So, if I don't want to be a root user, I have to log out and enter KDE again. When I boot in basic mode I see only black screen.
Driver was installed offline, cause I haven't set up VPN yet. But I can't say that it was pretty easily. It required rather long sequence of commands, those are not "intuitive", but are unknown for a novice. I've heard that the main goal of Ubuntu project is to create OS that "just works", so I hope that developers will consider this problem as a bug (especially keeping in mind "bug 1" - microsoft's market share :) ) and in next Ubuntu releases it will be solved "by default", without need to use console. Of course if it's possible. Thanks again. PS VPN setup in Ubuntu is also not as trivial as in Windows, isn't it? -- system doesn't boot on motherboard asus crosshair (chipset nvidia nforce 590 sli). "noapic nolapic irqpoll" doesn't help https://launchpad.net/bugs/91606 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
